1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 15387:2011Packaging Flexible laminatetubes Test methods to assessthe strength of the side seamBS EN 15387:2011 BRITISH STANDARDNational forewordThis British Standard is the
2、 UK implementation of EN 15387:2011.The UK participation in its preparation was entrusted to TechnicalCommittee PKW/0/-/10, Packaging - Plastics.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the neces
3、saryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 56324 9ICS 55.120Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committe
4、e on 31 August 2011.Amendments issued since publicationDate Text affectedBS EN 15387:2011EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15387 August 2011 ICS 55.120 English Version Packaging - Flexible laminate tubes - Test methods to assess the strength of the side seam Emballage - Tubes soup
5、les lamins - Mthodes dessai pour dterminer la rsistence de la soudure longitudinale Packmittel - Laminattuben - Prfverfahren zur Bestimmung der Festigkeit der Lngsnaht This European Standard was approved by CEN on 1 July 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations
6、 which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. Thi
7、s European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN memb
8、ers are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
9、 Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Memb
10、ers. Ref. No. EN 15387:2011: EBS EN 15387:2011EN 15387:2011 (E) 2 Contents Page Foreword . 3 1 Scope . 4 2 Principle . 4 3 Test equipment for burst test 4 4 Test operation . 5 4.1 Burst test. 5 4.2 Overlap test 6 5 Test report . 7 BS EN 15387:2011EN 15387:2011 (E) 3 Foreword This document (EN 15387:
11、2011) has been prepared by Technical Committee CEN/TC 261 “Packaging”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 2012, and conflicting nat
12、ional standards shall be withdrawn at the latest by February 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CE
13、N/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Li
14、thuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 15387:2011EN 15387:2011 (E) 4 1 Scope This European Standard specifies methods for the assessment of the strength of the side seam of flexible lami
15、nate tubes. It is applicable to flexible laminate tubes used for packing pharmaceutical, cosmetic, hygiene, food and other household products. 2 Principle The burst test and the overlap test serve to assess the strength of the side seam. These tests are complementary. The burst test is used to measu
16、re whether the tube can withstand a defined air pressure. In addition the overlap test gives information about possible reasons for an insufficient strength of the overlap of the laminate at the side seam. 3 Test equipment for burst test 3.1 Compressed air system. Air compressor with an initial mini
17、mum pressure of 2 bar equipped with an air regulator allowing a constant and stable pressure. BS EN 15387:2011EN 15387:2011 (E) 5 3.2 Test device. Key 1 Valve 2 Pressure gauge 3 Tube 4 Clamp 5 Adaptor for thread 6 Protective box 7 Compressed air Figure 1 Burst test principle 4 Test operation 4.1 Bur
18、st test a) Place the tube in the clamp (side seam centred), close one end of the tube and introduce the air from the other end of the tube. b) For tubes with a diameter less than or equal to 40 mm apply a pressure of 2 bar for 10 s. For tubes with a diameter larger than 40 mm apply a pressure of 1,8
19、 bar for 10 s. BS EN 15387:2011EN 15387:2011 (E) 6 c) The tube shall not burst in the overlap area or the side seam during the 10 s that the pressure is applied. If the tube bursts in any other area than the side seam or the overlap or if the tube does not burst at all, it meets the specifications.
20、d) Below 250 m laminate thickness the test shall be subject to a mutual agreement between customer and supplier. 4.2 Overlap test a) An appropriate measure shall be taken to make the inner layer visible. If the inner layer is not visible, samples shall be prepared by using an appropriate contrasting
21、 agent. b) Cut a cross-section of the tube approximately 10 mm from its open end. 1) If the tube is an ethylene vinyl alcohol (EVOH) barrier laminate, stain the section with a contrasting agent (e.g. iodine solution of 2,5 grams iodine, 2,5 grams potassium iodide, 15 grams distilled water, 80 grams
22、ethanol). This will turn an EVOH barrier layer dark brown or black within approximately one minute and enable it to be seen easily under the magnifying device. 2) If the tube is an aluminium barrier laminate, no additional sample preparation is required. 3) Other plastic or metal laminates will requ
23、ire careful examination to allow correct measurement of the overlap. c) Under the magnifying device the side seam will show an overlap of aluminium or a black line with polymer flow around the weld. d) Take the reading in mm from the graticule. e) The overlap shall be equal to or larger than 1 mm. f
24、) The overlap test does not apply to laminate tubes where the tube wall is joined edge to edge. Key 1 external layer 2 adhesive 3 barrier 4 inner layer 5 overlap Figure 2 Tested side seam BS EN 15387:2011EN 15387:2011 (E) 7 If laminate structures without an aluminium or EVOH barrier are used, a suit
25、able test procedure should be mutually agreed upon between customer and supplier. 5 Test report If not otherwise agreed between supplier and customer the test report shall contain the following information: a) reference to this European Standard and if necessary a specification for the method of sam
26、pling and acceptance of the batch; b) the complete identification of the batch and of the tubes checked; c) the number of tubes checked; d) the number of defects; e) the test result; f) all factors which could have affected the results or all operating details not specified in this European Standard
27、; g) date, place of test and name of tester. This page deliberately left blankThis page deliberately left blankBSI is the independent national body responsible for preparing British Standardsand other standards-related publications, information and services. It presents the UK view on standards in E
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